Other materials

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Below is a list of documents that contain the definitive and tested equations (PDF) for the principal projections.  Note that each document has two parts:  (1) Equations that are calculate zone parameters that only is calculated once for processing a group of points in any one zone.  This is followed by the equations that are repeated for each point to be projected.  This is done to prevent unecessary duplications in the calculations. 


Provided are direct and inverse solutions.  


Lambert Direct :
Adobe Acrobat document [116.5 KB]
Lambert Direct Projection Program
Text document [14.6 KB]
Lambert Inverse:
Adobe Acrobat document [173.3 KB]
UTM Direct
Adobe Acrobat document [112.9 KB]
UTM Inverse
Adobe Acrobat document [97.1 KB]
ECEF Direct
Adobe Acrobat document [134.6 KB]
ECEF Inverse
Adobe Acrobat document [225.8 KB]
GPS Accuracy
GPS Accuracy.pdf
Adobe Acrobat document [1.3 MB]
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